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8215
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1
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2 /*
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3 * Copyright (C) Roman Arutyunyan
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4 * Copyright (C) Nginx, Inc.
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5 */
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6
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7
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8 #include <ngx_config.h>
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9 #include <ngx_core.h>
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10 #include <ngx_http.h>
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11
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12
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13 #define NGX_HTTP_V3_FRAME_DATA 0x00
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14 #define NGX_HTTP_V3_FRAME_HEADERS 0x01
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15 #define NGX_HTTP_V3_FRAME_CANCEL_PUSH 0x03
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16 #define NGX_HTTP_V3_FRAME_SETTINGS 0x04
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17 #define NGX_HTTP_V3_FRAME_PUSH_PROMISE 0x05
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18 #define NGX_HTTP_V3_FRAME_GOAWAY 0x07
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19 #define NGX_HTTP_V3_FRAME_MAX_PUSH_ID 0x0d
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20
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21
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22 static ngx_int_t ngx_http_v3_process_pseudo_header(ngx_http_request_t *r,
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23 ngx_str_t *name, ngx_str_t *value);
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24
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25
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26 struct {
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27 ngx_str_t name;
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28 ngx_uint_t method;
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29 } ngx_http_v3_methods[] = {
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30
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31 { ngx_string("GET"), NGX_HTTP_GET },
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32 { ngx_string("POST"), NGX_HTTP_POST },
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33 { ngx_string("HEAD"), NGX_HTTP_HEAD },
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34 { ngx_string("OPTIONS"), NGX_HTTP_OPTIONS },
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35 { ngx_string("PROPFIND"), NGX_HTTP_PROPFIND },
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36 { ngx_string("PUT"), NGX_HTTP_PUT },
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37 { ngx_string("MKCOL"), NGX_HTTP_MKCOL },
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38 { ngx_string("DELETE"), NGX_HTTP_DELETE },
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39 { ngx_string("COPY"), NGX_HTTP_COPY },
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40 { ngx_string("MOVE"), NGX_HTTP_MOVE },
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41 { ngx_string("PROPPATCH"), NGX_HTTP_PROPPATCH },
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42 { ngx_string("LOCK"), NGX_HTTP_LOCK },
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43 { ngx_string("UNLOCK"), NGX_HTTP_UNLOCK },
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44 { ngx_string("PATCH"), NGX_HTTP_PATCH },
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45 { ngx_string("TRACE"), NGX_HTTP_TRACE }
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46 };
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47
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48
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49 ngx_int_t
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50 ngx_http_v3_parse_header(ngx_http_request_t *r, ngx_buf_t *b, ngx_uint_t pseudo)
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51 {
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52 u_char *p, ch;
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53 ngx_str_t name, value;
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54 ngx_int_t rc;
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55 ngx_uint_t length, index, insert_count, sign, base, delta_base,
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56 huffman, dynamic, offset;
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57 ngx_connection_t *c;
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58 ngx_http_v3_header_t *h;
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59 enum {
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60 sw_start = 0,
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61 sw_length,
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62 sw_length_1,
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63 sw_length_2,
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64 sw_length_3,
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65 sw_header_block,
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66 sw_req_insert_count,
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67 sw_delta_base,
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68 sw_read_delta_base,
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69 sw_header,
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70 sw_old_header,
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71 sw_header_ri,
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72 sw_header_pbi,
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73 sw_header_lri,
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74 sw_header_lpbi,
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75 sw_header_l_name_len,
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76 sw_header_l_name,
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77 sw_header_value_len,
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78 sw_header_read_value_len,
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79 sw_header_value
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80 } state;
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81
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82 c = r->connection;
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83
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84 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
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85 "http3 parse header, pseudo:%ui", pseudo);
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86
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87 if (r->state == sw_old_header) {
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88 r->state = sw_header;
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89 return NGX_OK;
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90 }
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91
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92 length = r->h3_length;
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93 index = r->h3_index;
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94 insert_count = r->h3_insert_count;
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95 sign = r->h3_sign;
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96 delta_base = r->h3_delta_base;
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97 huffman = r->h3_huffman;
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98 dynamic = r->h3_dynamic;
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99 offset = r->h3_offset;
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100
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101 name.data = r->header_name_start;
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102 name.len = r->header_name_end - r->header_name_start;
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103 value.data = r->header_start;
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104 value.len = r->header_end - r->header_start;
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105
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106 if (r->state == sw_start) {
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107 length = 1;
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108 }
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109
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110 again:
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111
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112 state = r->state;
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113
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114 if (state == sw_header && length == 0) {
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115 r->state = sw_start;
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116 return NGX_HTTP_PARSE_HEADER_DONE;
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117 }
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118
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119 for (p = b->pos; p < b->last; p++) {
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120
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121 if (state >= sw_header_block && length-- == 0) {
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122 goto failed;
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123 }
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124
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125 ch = *p;
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126
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127 switch (state) {
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128
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129 case sw_start:
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130
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131 if (ch != NGX_HTTP_V3_FRAME_HEADERS) {
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132 goto failed;
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133 }
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134
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135 r->request_start = p;
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136 state = sw_length;
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137 break;
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138
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139 case sw_length:
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140
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141 length = ch;
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142 if (length & 0xc0) {
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143 state = sw_length_1;
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144 break;
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145 }
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146
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147 state = sw_header_block;
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148 break;
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149
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150 case sw_length_1:
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151
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152 length = (length << 8) + ch;
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153 if ((length & 0xc000) != 0x4000) {
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154 state = sw_length_2;
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155 break;
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156 }
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157
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158 length &= 0x3fff;
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159 state = sw_header_block;
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160 break;
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161
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162 case sw_length_2:
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163
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164 length = (length << 8) + ch;
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165 if ((length & 0xc00000) != 0x800000) {
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166 state = sw_length_3;
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167 break;
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168 }
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169
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170 /* fall through */
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171
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172 case sw_length_3:
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173
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174 length &= 0x3fffff;
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175 state = sw_header_block;
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176 break;
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177
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178 case sw_header_block:
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179
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180 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
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181 "http3 header block length:%ui", length);
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182
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183 if (ch != 0xff) {
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184 insert_count = ch;
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185 state = sw_delta_base;
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186 break;
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187 }
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188
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189 insert_count = 0;
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190 state = sw_req_insert_count;
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191 break;
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192
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193 case sw_req_insert_count:
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194
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195 insert_count = (insert_count << 7) + (ch & 0x7f);
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196 if (ch & 0x80) {
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197 break;
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198 }
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199
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200 insert_count += 0xff;
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201 state = sw_delta_base;
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202 break;
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203
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204 case sw_delta_base:
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205
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206 sign = (ch & 0x80) ? 1 : 0;
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207 delta_base = ch & 0x7f;
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208
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209 if (delta_base != 0x7f) {
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210 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, c->log, 0,
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211 "http3 header block "
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212 "insert_count:%ui, sign:%ui, delta_base:%ui",
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213 insert_count, sign, delta_base);
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214 goto done;
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215 }
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216
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217 delta_base = 0;
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218 state = sw_read_delta_base;
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219 break;
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220
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221 case sw_read_delta_base:
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222
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223 delta_base = (delta_base << 7) + (ch & 0x7f);
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224 if (ch & 0x80) {
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225 break;
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226 }
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227
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228 delta_base += 0x7f;
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229
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230 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, c->log, 0,
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231 "http3 header block "
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232 "insert_count:%ui, sign:%ui, delta_base:%ui",
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233 insert_count, sign, delta_base);
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234 goto done;
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235
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236 case sw_header:
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237
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238 index = 0;
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239 huffman = 0;
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240 ngx_str_null(&name);
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241 ngx_str_null(&value);
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242
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243 if (ch & 0x80) {
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244 /* Indexed Header Field */
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245
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246 dynamic = (ch & 0x40) ? 0 : 1;
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247 index = ch & 0x3f;
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248
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249 if (index != 0x3f) {
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250 goto done;
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251 }
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252
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253 index = 0;
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254 state = sw_header_ri;
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255 break;
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256 }
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257
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258 if (ch & 0x40) {
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259 /* Literal Header Field With Name Reference */
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260
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261 dynamic = (ch & 0x10) ? 0 : 1;
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262 index = ch & 0x0f;
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263
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264 if (index != 0x0f) {
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265 state = sw_header_value_len;
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266 break;
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267 }
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268
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269 index = 0;
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270 state = sw_header_lri;
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271 break;
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272 }
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273
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274 if (ch & 0x20) {
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275 /* Literal Header Field Without Name Reference */
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276
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277 huffman = (ch & 0x08) ? 1 : 0;
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278 name.len = ch & 0x07;
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279
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280 if (name.len == 0) {
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281 goto failed;
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282 }
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283
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284 if (name.len != 0x07) {
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285 offset = 0;
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286 state = sw_header_l_name;
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287 break;
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288 }
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289
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290 name.len = 0;
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291 state = sw_header_l_name_len;
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292 break;
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293 }
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294
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295 if (ch & 10) {
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296 /* Indexed Header Field With Post-Base Index */
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297
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298 dynamic = 2;
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299 index = ch & 0x0f;
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300
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301 if (index != 0x0f) {
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302 goto done;
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303 }
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304
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305 index = 0;
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306 state = sw_header_pbi;
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307 break;
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308 }
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309
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310 /* Literal Header Field With Post-Base Name Reference */
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311
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312 dynamic = 2;
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313 index = ch & 0x07;
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314
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315 if (index != 0x07) {
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316 state = sw_header_value_len;
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317 break;
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318 }
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319
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320 index = 0;
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321 state = sw_header_lpbi;
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322 break;
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323
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324 case sw_header_ri:
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325
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326 index = (index << 7) + (ch & 0x7f);
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327 if (ch & 0x80) {
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328 break;
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329 }
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330
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331 index += 0x3f;
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332 goto done;
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333
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334 case sw_header_pbi:
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335
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336 index = (index << 7) + (ch & 0x7f);
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337 if (ch & 0x80) {
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338 break;
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339 }
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340
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341 index += 0x0f;
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342 goto done;
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343
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344 case sw_header_lri:
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345
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346 index = (index << 7) + (ch & 0x7f);
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347 if (ch & 0x80) {
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348 break;
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349 }
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350
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351 index += 0x0f;
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352 state = sw_header_value_len;
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353 break;
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354
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355 case sw_header_lpbi:
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356
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357 index = (index << 7) + (ch & 0x7f);
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358 if (ch & 0x80) {
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359 break;
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360 }
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361
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362 index += 0x07;
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363 state = sw_header_value_len;
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364 break;
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365
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366
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367 case sw_header_l_name_len:
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368
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369 name.len = (name.len << 7) + (ch & 0x7f);
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370 if (ch & 0x80) {
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371 break;
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372 }
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373
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374 name.len += 0x07;
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375 offset = 0;
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376 state = sw_header_l_name;
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377 break;
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378
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379 case sw_header_l_name:
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380 if (offset++ == 0) {
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381 name.data = p;
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382 }
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383
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384 if (offset != name.len) {
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385 break;
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386 }
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387
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388 if (huffman) {
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389 if (ngx_http_v3_decode_huffman(c, &name) != NGX_OK) {
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390 goto failed;
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391 }
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392 }
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393
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394 state = sw_header_value_len;
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395 break;
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396
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397 case sw_header_value_len:
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398
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399 huffman = (ch & 0x80) ? 1 : 0;
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400 value.len = ch & 0x7f;
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401
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402 if (value.len == 0) {
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403 value.data = p;
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404 goto done;
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405 }
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406
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407 if (value.len != 0x7f) {
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408 offset = 0;
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409 state = sw_header_value;
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410 break;
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411 }
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412
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413 value.len = 0;
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414 state = sw_header_read_value_len;
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415 break;
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416
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417 case sw_header_read_value_len:
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418
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419 value.len = (value.len << 7) + (ch & 0x7f);
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420 if (ch & 0x80) {
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421 break;
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422 }
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423
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424 value.len += 0x7f;
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425 offset = 0;
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426 state = sw_header_value;
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427 break;
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428
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429 case sw_header_value:
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430
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431 if (offset++ == 0) {
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432 value.data = p;
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433 }
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434
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435 if (offset != value.len) {
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436 break;
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437 }
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438
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439 if (huffman) {
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440 if (ngx_http_v3_decode_huffman(c, &value) != NGX_OK) {
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441 goto failed;
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442 }
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443 }
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444
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445 goto done;
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446
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447 case sw_old_header:
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448
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449 break;
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450 }
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451 }
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452
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453 b->pos = p;
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454 r->state = state;
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455 r->h3_length = length;
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|
|
456 r->h3_index = index;
|
|
|
457 r->h3_insert_count = insert_count;
|
|
|
458 r->h3_sign = sign;
|
|
|
459 r->h3_delta_base = delta_base;
|
|
|
460 r->h3_huffman = huffman;
|
|
|
461 r->h3_dynamic = dynamic;
|
|
|
462 r->h3_offset = offset;
|
|
|
463
|
|
|
464 /* XXX fix large reallocations */
|
|
|
465 r->header_name_start = name.data;
|
|
|
466 r->header_name_end = name.data + name.len;
|
|
|
467 r->header_start = value.data;
|
|
|
468 r->header_end = value.data + value.len;
|
|
|
469
|
|
|
470 /* XXX r->lowcase_index = i; */
|
|
|
471
|
|
|
472 return NGX_AGAIN;
|
|
|
473
|
|
|
474 done:
|
|
|
475
|
|
|
476 b->pos = p + 1;
|
|
|
477 r->state = sw_header;
|
|
|
478 r->h3_length = length;
|
|
|
479 r->h3_insert_count = insert_count;
|
|
|
480 r->h3_sign = sign;
|
|
|
481 r->h3_delta_base = delta_base;
|
|
|
482
|
|
|
483 if (state < sw_header) {
|
|
|
484 if (ngx_http_v3_check_insert_count(c, insert_count) != NGX_OK) {
|
|
|
485 return NGX_DONE;
|
|
|
486 }
|
|
|
487
|
|
|
488 goto again;
|
|
|
489 }
|
|
|
490
|
|
|
491 if (sign == 0) {
|
|
|
492 base = insert_count + delta_base;
|
|
|
493 } else {
|
|
|
494 base = insert_count - delta_base - 1;
|
|
|
495 }
|
|
|
496
|
|
|
497 ngx_log_debug5(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
498 "http3 header %s[%ui], base:%ui, \"%V\":\"%V\"",
|
|
|
499 dynamic ? "dynamic" : "static", index, base, &name, &value);
|
|
|
500
|
|
|
501 if (name.data == NULL) {
|
|
|
502
|
|
|
503 if (dynamic == 2) {
|
|
|
504 index = base - index - 1;
|
|
|
505 } else if (dynamic == 1) {
|
|
|
506 index += base;
|
|
|
507 }
|
|
|
508
|
|
|
509 h = ngx_http_v3_lookup_table(c, dynamic, index);
|
|
|
510 if (h == NULL) {
|
|
|
511 goto failed;
|
|
|
512 }
|
|
|
513
|
|
|
514 name = h->name;
|
|
|
515
|
|
|
516 if (value.data == NULL) {
|
|
|
517 value = h->value;
|
|
|
518 }
|
|
|
519 }
|
|
|
520
|
|
|
521 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
522 "http3 header \"%V\":\"%V\"", &name, &value);
|
|
|
523
|
|
|
524 if (pseudo) {
|
|
|
525 rc = ngx_http_v3_process_pseudo_header(r, &name, &value);
|
|
|
526
|
|
|
527 if (rc == NGX_ERROR) {
|
|
|
528 goto failed;
|
|
|
529 }
|
|
|
530
|
|
|
531 if (rc == NGX_OK) {
|
|
|
532 r->request_end = p + 1;
|
|
|
533 goto again;
|
|
|
534 }
|
|
|
535
|
|
|
536 /* rc == NGX_DONE */
|
|
|
537
|
|
|
538 r->state = sw_old_header;
|
|
|
539 }
|
|
|
540
|
|
|
541 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
542 "http3 header left:%ui", length);
|
|
|
543
|
|
|
544 r->header_name_start = name.data;
|
|
|
545 r->header_name_end = name.data + name.len;
|
|
|
546 r->header_start = value.data;
|
|
|
547 r->header_end = value.data + value.len;
|
|
|
548 r->header_hash = ngx_hash_key(name.data, name.len); /* XXX */
|
|
|
549
|
|
|
550 /* XXX r->lowcase_index = i; */
|
|
|
551
|
|
|
552 return NGX_OK;
|
|
|
553
|
|
|
554 failed:
|
|
|
555
|
|
|
556 return NGX_HTTP_PARSE_INVALID_REQUEST;
|
|
|
557 }
|
|
|
558
|
|
|
559
|
|
|
560 static ngx_int_t
|
|
|
561 ngx_http_v3_process_pseudo_header(ngx_http_request_t *r, ngx_str_t *name,
|
|
|
562 ngx_str_t *value)
|
|
|
563 {
|
|
|
564 ngx_uint_t i;
|
|
|
565 ngx_connection_t *c;
|
|
|
566
|
|
|
567 c = r->connection;
|
|
|
568
|
|
|
569 if (name->len == 7 && ngx_strncmp(name->data, ":method", 7) == 0) {
|
|
|
570 r->method_start = value->data;
|
|
|
571 r->method_end = value->data + value->len;
|
|
|
572
|
|
|
573 for (i = 0; i < sizeof(ngx_http_v3_methods)
|
|
|
574 / sizeof(ngx_http_v3_methods[0]); i++)
|
|
|
575 {
|
|
|
576 if (value->len == ngx_http_v3_methods[i].name.len
|
|
|
577 && ngx_strncmp(value->data, ngx_http_v3_methods[i].name.data,
|
|
|
578 value->len) == 0)
|
|
|
579 {
|
|
|
580 r->method = ngx_http_v3_methods[i].method;
|
|
|
581 break;
|
|
|
582 }
|
|
|
583 }
|
|
|
584
|
|
|
585 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
586 "http3 method \"%V\" %ui", value, r->method);
|
|
|
587 return NGX_OK;
|
|
|
588 }
|
|
|
589
|
|
|
590 if (name->len == 5 && ngx_strncmp(name->data, ":path", 5) == 0) {
|
|
|
591 r->uri_start = value->data;
|
|
|
592 r->uri_end = value->data + value->len;
|
|
|
593
|
|
|
594 if (ngx_http_parse_uri(r) != NGX_OK) {
|
|
|
595 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
596 "client sent invalid :path header: \"%V\"", value);
|
|
|
597 return NGX_ERROR;
|
|
|
598 }
|
|
|
599
|
|
|
600 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
601 "http3 path \"%V\"", value);
|
|
|
602
|
|
|
603 return NGX_OK;
|
|
|
604 }
|
|
|
605
|
|
|
606 if (name->len == 7 && ngx_strncmp(name->data, ":scheme", 7) == 0) {
|
|
|
607 r->schema_start = value->data;
|
|
|
608 r->schema_end = value->data + value->len;
|
|
|
609
|
|
|
610 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
611 "http3 schema \"%V\"", value);
|
|
|
612
|
|
|
613 return NGX_OK;
|
|
|
614 }
|
|
|
615
|
|
|
616 if (name->len == 10 && ngx_strncmp(name->data, ":authority", 10) == 0) {
|
|
|
617 r->host_start = value->data;
|
|
|
618 r->host_end = value->data + value->len;
|
|
|
619
|
|
|
620 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
621 "http3 authority \"%V\"", value);
|
|
|
622
|
|
|
623 return NGX_OK;
|
|
|
624 }
|
|
|
625
|
|
|
626 if (name->len && name->data[0] == ':') {
|
|
|
627 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
628 "http3 unknown pseudo header \"%V\" \"%V\"",
|
|
|
629 name, value);
|
|
|
630 return NGX_OK;
|
|
|
631 }
|
|
|
632
|
|
|
633 return NGX_DONE;
|
|
|
634 }
|
|
|
635
|
|
|
636
|
|
|
637 ngx_chain_t *
|
|
|
638 ngx_http_v3_create_header(ngx_http_request_t *r)
|
|
|
639 {
|
|
|
640 u_char *p;
|
|
|
641 size_t len, hlen, n;
|
|
|
642 ngx_buf_t *b;
|
|
|
643 ngx_uint_t i, j;
|
|
|
644 ngx_chain_t *hl, *cl, *bl;
|
|
|
645 ngx_list_part_t *part;
|
|
|
646 ngx_table_elt_t *header;
|
|
|
647 ngx_connection_t *c;
|
|
|
648 ngx_http_core_loc_conf_t *clcf;
|
|
|
649
|
|
|
650 c = r->connection;
|
|
|
651
|
|
|
652 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http3 create header");
|
|
|
653
|
|
|
654 /* XXX support chunked body in the chunked filter */
|
|
|
655 if (r->headers_out.content_length_n == -1) {
|
|
|
656 return NULL;
|
|
|
657 }
|
|
|
658
|
|
|
659 len = 0;
|
|
|
660
|
|
|
661 if (r->headers_out.status == NGX_HTTP_OK) {
|
|
|
662 len += ngx_http_v3_encode_prefix_int(NULL, 25, 6);
|
|
|
663
|
|
|
664 } else {
|
|
|
665 len += 3 + ngx_http_v3_encode_prefix_int(NULL, 25, 4)
|
|
|
666 + ngx_http_v3_encode_prefix_int(NULL, 3, 7);
|
|
|
667 }
|
|
|
668
|
|
|
669 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
670
|
|
|
671 if (r->headers_out.server == NULL) {
|
|
|
672 if (clcf->server_tokens == NGX_HTTP_SERVER_TOKENS_ON) {
|
|
|
673 n = sizeof(NGINX_VER) - 1;
|
|
|
674
|
|
|
675 } else if (clcf->server_tokens == NGX_HTTP_SERVER_TOKENS_BUILD) {
|
|
|
676 n = sizeof(NGINX_VER_BUILD) - 1;
|
|
|
677
|
|
|
678 } else {
|
|
|
679 n = sizeof("nginx") - 1;
|
|
|
680 }
|
|
|
681
|
|
|
682 len += ngx_http_v3_encode_prefix_int(NULL, 92, 4)
|
|
|
683 + ngx_http_v3_encode_prefix_int(NULL, n, 7) + n;
|
|
|
684 }
|
|
|
685
|
|
|
686 if (r->headers_out.date == NULL) {
|
|
|
687 len += ngx_http_v3_encode_prefix_int(NULL, 6, 4)
|
|
|
688 + ngx_http_v3_encode_prefix_int(NULL, ngx_cached_http_time.len,
|
|
|
689 7)
|
|
|
690 + ngx_cached_http_time.len;
|
|
|
691 }
|
|
|
692
|
|
|
693 if (r->headers_out.content_type.len) {
|
|
|
694 n = r->headers_out.content_type.len;
|
|
|
695
|
|
|
696 if (r->headers_out.content_type_len == r->headers_out.content_type.len
|
|
|
697 && r->headers_out.charset.len)
|
|
|
698 {
|
|
|
699 n += sizeof("; charset=") - 1 + r->headers_out.charset.len;
|
|
|
700 }
|
|
|
701
|
|
|
702 len += ngx_http_v3_encode_prefix_int(NULL, 53, 4)
|
|
|
703 + ngx_http_v3_encode_prefix_int(NULL, n, 7) + n;
|
|
|
704 }
|
|
|
705
|
|
|
706 if (r->headers_out.content_length_n == 0) {
|
|
|
707 len += ngx_http_v3_encode_prefix_int(NULL, 4, 6);
|
|
|
708
|
|
|
709 } else {
|
|
|
710 len += ngx_http_v3_encode_prefix_int(NULL, 4, 4) + 1 + NGX_OFF_T_LEN;
|
|
|
711 }
|
|
|
712
|
|
|
713 if (r->headers_out.last_modified == NULL
|
|
|
714 && r->headers_out.last_modified_time != -1)
|
|
|
715 {
|
|
|
716 len += ngx_http_v3_encode_prefix_int(NULL, 10, 4) + 1
|
|
|
717 + sizeof("Last-Modified: Mon, 28 Sep 1970 06:00:00 GMT");
|
|
|
718 }
|
|
|
719
|
|
|
720 /* XXX location */
|
|
|
721
|
|
|
722 #if (NGX_HTTP_GZIP)
|
|
|
723 if (r->gzip_vary) {
|
|
|
724 if (clcf->gzip_vary) {
|
|
|
725 /* Vary: Accept-Encoding */
|
|
|
726 len += ngx_http_v3_encode_prefix_int(NULL, 59, 6);
|
|
|
727
|
|
|
728 } else {
|
|
|
729 r->gzip_vary = 0;
|
|
|
730 }
|
|
|
731 }
|
|
|
732 #endif
|
|
|
733
|
|
|
734 part = &r->headers_out.headers.part;
|
|
|
735 header = part->elts;
|
|
|
736
|
|
|
737 for (i = 0; /* void */; i++) {
|
|
|
738
|
|
|
739 if (i >= part->nelts) {
|
|
|
740 if (part->next == NULL) {
|
|
|
741 break;
|
|
|
742 }
|
|
|
743
|
|
|
744 part = part->next;
|
|
|
745 header = part->elts;
|
|
|
746 i = 0;
|
|
|
747 }
|
|
|
748
|
|
|
749 if (header[i].hash == 0) {
|
|
|
750 continue;
|
|
|
751 }
|
|
|
752
|
|
|
753 len += ngx_http_v3_encode_prefix_int(NULL, header[i].key.len, 3)
|
|
|
754 + header[i].key.len
|
|
|
755 + ngx_http_v3_encode_prefix_int(NULL, header[i].value.len, 7 )
|
|
|
756 + header[i].value.len;
|
|
|
757 }
|
|
|
758
|
|
|
759 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, "http3 header len:%uz", len);
|
|
|
760
|
|
|
761 b = ngx_create_temp_buf(r->pool, len);
|
|
|
762 if (b == NULL) {
|
|
|
763 return NULL;
|
|
|
764 }
|
|
|
765
|
|
|
766 *b->last++ = 0;
|
|
|
767 *b->last++ = 0;
|
|
|
768
|
|
|
769 if (r->headers_out.status == NGX_HTTP_OK) {
|
|
|
770 /* :status: 200 */
|
|
|
771 *b->last = 0xc0;
|
|
|
772 b->last = (u_char *) ngx_http_v3_encode_prefix_int(b->last, 25, 6);
|
|
|
773
|
|
|
774 } else {
|
|
|
775 /* :status: 200 */
|
|
|
776 *b->last = 0x70;
|
|
|
777 b->last = (u_char *) ngx_http_v3_encode_prefix_int(b->last, 25, 4);
|
|
|
778 *b->last = 0;
|
|
|
779 b->last = (u_char *) ngx_http_v3_encode_prefix_int(b->last, 3, 7);
|
|
|
780 b->last = ngx_sprintf(b->last, "%03ui ", r->headers_out.status);
|
|
|
781 }
|
|
|
782
|
|
|
783 if (r->headers_out.server == NULL) {
|
|
|
784 if (clcf->server_tokens == NGX_HTTP_SERVER_TOKENS_ON) {
|
|
|
785 p = (u_char *) NGINX_VER;
|
|
|
786 n = sizeof(NGINX_VER) - 1;
|
|
|
787
|
|
|
788 } else if (clcf->server_tokens == NGX_HTTP_SERVER_TOKENS_BUILD) {
|
|
|
789 p = (u_char *) NGINX_VER_BUILD;
|
|
|
790 n = sizeof(NGINX_VER_BUILD) - 1;
|
|
|
791
|
|
|
792 } else {
|
|
|
793 p = (u_char *) "nginx";
|
|
|
794 n = sizeof("nginx") - 1;
|
|
|
795 }
|
|
|
796
|
|
|
797 /* server */
|
|
|
798 *b->last = 0x70;
|
|
|
799 b->last = (u_char *) ngx_http_v3_encode_prefix_int(b->last, 92, 4);
|
|
|
800 *b->last = 0;
|
|
|
801 b->last = (u_char *) ngx_http_v3_encode_prefix_int(b->last, n, 7);
|
|
|
802 b->last = ngx_cpymem(b->last, p, n);
|
|
|
803 }
|
|
|
804
|
|
|
805 if (r->headers_out.date == NULL) {
|
|
|
806 /* date */
|
|
|
807 *b->last = 0x70;
|
|
|
808 b->last = (u_char *) ngx_http_v3_encode_prefix_int(b->last, 6, 4);
|
|
|
809 *b->last = 0;
|
|
|
810 b->last = (u_char *) ngx_http_v3_encode_prefix_int(b->last,
|
|
|
811 ngx_cached_http_time.len, 7);
|
|
|
812 b->last = ngx_cpymem(b->last, ngx_cached_http_time.data,
|
|
|
813 ngx_cached_http_time.len);
|
|
|
814 }
|
|
|
815
|
|
|
816 if (r->headers_out.content_type.len) {
|
|
|
817 n = r->headers_out.content_type.len;
|
|
|
818
|
|
|
819 if (r->headers_out.content_type_len == r->headers_out.content_type.len
|
|
|
820 && r->headers_out.charset.len)
|
|
|
821 {
|
|
|
822 n += sizeof("; charset=") - 1 + r->headers_out.charset.len;
|
|
|
823 }
|
|
|
824
|
|
|
825 /* content-type: text/plain */
|
|
|
826 *b->last = 0x70;
|
|
|
827 b->last = (u_char *) ngx_http_v3_encode_prefix_int(b->last, 53, 4);
|
|
|
828 *b->last = 0;
|
|
|
829 b->last = (u_char *) ngx_http_v3_encode_prefix_int(b->last, n, 7);
|
|
|
830
|
|
|
831 p = b->last;
|
|
|
832 b->last = ngx_copy(b->last, r->headers_out.content_type.data,
|
|
|
833 r->headers_out.content_type.len);
|
|
|
834
|
|
|
835 if (r->headers_out.content_type_len == r->headers_out.content_type.len
|
|
|
836 && r->headers_out.charset.len)
|
|
|
837 {
|
|
|
838 b->last = ngx_cpymem(b->last, "; charset=",
|
|
|
839 sizeof("; charset=") - 1);
|
|
|
840 b->last = ngx_copy(b->last, r->headers_out.charset.data,
|
|
|
841 r->headers_out.charset.len);
|
|
|
842
|
|
|
843 /* update r->headers_out.content_type for possible logging */
|
|
|
844
|
|
|
845 r->headers_out.content_type.len = b->last - p;
|
|
|
846 r->headers_out.content_type.data = p;
|
|
|
847 }
|
|
|
848 }
|
|
|
849
|
|
|
850 if (r->headers_out.content_length_n == 0) {
|
|
|
851 /* content-length: 0 */
|
|
|
852 *b->last = 0xc0;
|
|
|
853 b->last = (u_char *) ngx_http_v3_encode_prefix_int(b->last, 4, 6);
|
|
|
854
|
|
|
855 } else if (r->headers_out.content_length_n > 0) {
|
|
|
856 /* content-length: 0 */
|
|
|
857 *b->last = 0x70;
|
|
|
858 b->last = (u_char *) ngx_http_v3_encode_prefix_int(b->last, 4, 4);
|
|
|
859 p = b->last++;
|
|
|
860 b->last = ngx_sprintf(b->last, "%O", r->headers_out.content_length_n);
|
|
|
861 *p = b->last - p - 1;
|
|
|
862 }
|
|
|
863
|
|
|
864 if (r->headers_out.last_modified == NULL
|
|
|
865 && r->headers_out.last_modified_time != -1)
|
|
|
866 {
|
|
|
867 /* last-modified */
|
|
|
868 *b->last = 0x70;
|
|
|
869 b->last = (u_char *) ngx_http_v3_encode_prefix_int(b->last, 10, 4);
|
|
|
870 p = b->last++;
|
|
|
871 b->last = ngx_http_time(b->last, r->headers_out.last_modified_time);
|
|
|
872 *p = b->last - p - 1;
|
|
|
873 }
|
|
|
874
|
|
|
875 #if (NGX_HTTP_GZIP)
|
|
|
876 if (r->gzip_vary) {
|
|
|
877 /* vary: accept-encoding */
|
|
|
878 *b->last = 0xc0;
|
|
|
879 b->last = (u_char *) ngx_http_v3_encode_prefix_int(b->last, 59, 6);
|
|
|
880 }
|
|
|
881 #endif
|
|
|
882
|
|
|
883 part = &r->headers_out.headers.part;
|
|
|
884 header = part->elts;
|
|
|
885
|
|
|
886 for (i = 0; /* void */; i++) {
|
|
|
887
|
|
|
888 if (i >= part->nelts) {
|
|
|
889 if (part->next == NULL) {
|
|
|
890 break;
|
|
|
891 }
|
|
|
892
|
|
|
893 part = part->next;
|
|
|
894 header = part->elts;
|
|
|
895 i = 0;
|
|
|
896 }
|
|
|
897
|
|
|
898 if (header[i].hash == 0) {
|
|
|
899 continue;
|
|
|
900 }
|
|
|
901
|
|
|
902 *b->last = 0x30;
|
|
|
903 b->last = (u_char *) ngx_http_v3_encode_prefix_int(b->last,
|
|
|
904 header[i].key.len,
|
|
|
905 3);
|
|
|
906 for (j = 0; j < header[i].key.len; j++) {
|
|
|
907 *b->last++ = ngx_tolower(header[i].key.data[j]);
|
|
|
908 }
|
|
|
909
|
|
|
910 *b->last = 0;
|
|
|
911 b->last = (u_char *) ngx_http_v3_encode_prefix_int(b->last,
|
|
|
912 header[i].value.len,
|
|
|
913 7);
|
|
|
914 b->last = ngx_copy(b->last, header[i].value.data, header[i].value.len);
|
|
|
915 }
|
|
|
916
|
|
|
917 cl = ngx_alloc_chain_link(c->pool);
|
|
|
918 if (cl == NULL) {
|
|
|
919 return NULL;
|
|
|
920 }
|
|
|
921
|
|
|
922 cl->buf = b;
|
|
|
923 cl->next = NULL;
|
|
|
924
|
|
|
925 n = b->last - b->pos;
|
|
|
926
|
|
|
927 len = 1 + ngx_http_v3_encode_varlen_int(NULL, n);
|
|
|
928
|
|
|
929 b = ngx_create_temp_buf(c->pool, len);
|
|
|
930 if (b == NULL) {
|
|
|
931 return NULL;
|
|
|
932 }
|
|
|
933
|
|
|
934 *b->last++ = NGX_HTTP_V3_FRAME_HEADERS;
|
|
|
935 b->last = (u_char *) ngx_http_v3_encode_varlen_int(b->last, n);
|
|
|
936
|
|
|
937 hl = ngx_alloc_chain_link(c->pool);
|
|
|
938 if (hl == NULL) {
|
|
|
939 return NULL;
|
|
|
940 }
|
|
|
941
|
|
|
942 hl->buf = b;
|
|
|
943 hl->next = cl;
|
|
|
944
|
|
|
945 hlen = 1 + ngx_http_v3_encode_varlen_int(NULL, len);
|
|
|
946
|
|
|
947 if (r->headers_out.content_length_n >= 0) {
|
|
|
948 len = 1 + ngx_http_v3_encode_varlen_int(NULL,
|
|
|
949 r->headers_out.content_length_n);
|
|
|
950
|
|
|
951 b = ngx_create_temp_buf(c->pool, len);
|
|
|
952 if (b == NULL) {
|
|
|
953 NULL;
|
|
|
954 }
|
|
|
955
|
|
|
956 *b->last++ = NGX_HTTP_V3_FRAME_DATA;
|
|
|
957 b->last = (u_char *) ngx_http_v3_encode_varlen_int(b->last,
|
|
|
958 r->headers_out.content_length_n);
|
|
|
959
|
|
|
960 bl = ngx_alloc_chain_link(c->pool);
|
|
|
961 if (bl == NULL) {
|
|
|
962 return NULL;
|
|
|
963 }
|
|
|
964
|
|
|
965 bl->buf = b;
|
|
|
966 bl->next = NULL;
|
|
|
967 cl->next = bl;
|
|
|
968 }
|
|
|
969
|
|
|
970 return hl;
|
|
|
971 }
|
